GitOrigin-RevId: 87e56f9667

GitOrigin-RevId: 3bb0b46311

1: reduce python whl package size
2: unify api link logic on all OS
3: add option: MGE_WINDOWS_BUILD_WITH_STATIC_CRT
    --- default OFF
    --- if build CRT(vc runtime) with STATIC with megengine.dll
        some CRT api will crash, for example, flush, so if you
        build with static megengine, and do not want to install CRT
        you can set MGE_WINDOWS_BUILD_WITH_STATIC_CRT TRUE
    --- how to install CRT:
        https://docs.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-160
        install VC_redist.x64.exe
4: rename megengine_export to megengine_shared(only export needed symbols ),
   caused by runtime symbols conflict with pytorch

GitOrigin-RevId: 93d8d80f29

GitOrigin-RevId: beddcf9745

GitOrigin-RevId: 27c7e50207

GitOrigin-RevId: f442431381

From GITHUB 168

COPYBARA_INTEGRATE_REVIEW=https://api.github.com/repos/MegEngine/MegEngine/pulls/168 from Tricster <mediosrity@gmail.com> 5c775d02dd
Closes #168
GitOrigin-RevId: bceecb401b

GitOrigin-RevId: ffd6431299

GitOrigin-RevId: a1c34ef40b

GitOrigin-RevId: 656a27d62b

GitOrigin-RevId: ccff72e39a

pytest and enable cpp test in ci

GitOrigin-RevId: 5625a514ce

GitOrigin-RevId: 5dea6a6c65

GitOrigin-RevId: d60c4052c1

GitOrigin-RevId: f3b6e492d7

GitOrigin-RevId: 7f6629ae1f

GitOrigin-RevId: b20a514f8c

GitOrigin-RevId: 92b2c07bf9

GitOrigin-RevId: b701710b74

GitOrigin-RevId: 97d2b496bb

GitOrigin-RevId: 1db6f845f6